<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title></title>
		<style type="text/css">
			#div1 {
				width: 100px;
				height: 100px;
				background-color: red;
			}
		</style>
	</head>
	<body>
		<div id="div1"></div>
		<div class="redDiv"></div>
	</body>
</html>
